OK, that's progress. The next thing I'd check is that you are *not* using the JTAG configuration mode, as this disables the ICAP. You can also try turning on the DEBUG flags in the driver itself. During open() the driver attempts to read the IDCODE from the hwicap to get it back to an initial state.
Steve > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:linuxppc-embedded- > [EMAIL PROTECTED] On Behalf Of Will Kritikos > Sent: Wednesday, May 14, 2008 12:20 PM > To: Stephen Neuendorffer > Cc: [email protected] > Subject: Re: xilinx_hwicap driver problems > > Steve, > Yes, this fixed that problem. the following is now printed when > booting the kernel. > > [ 5.866230] icap icap.0: Xilinx icap port driver > [ 5.866401] icap icap.0: ioremap 40200000 to c5000000 with size 10000 > > The icap is at address 0x40200000 on my system, so that seems correct. > > However, when I copy partial bitstreams to the device, I get strange > results. Here is what I am seeing. > > # mknod /dev/icap c 259 0 > # cp opb_prr_0_lin_partial.bit /dev/icap > cp: write error: Bad address > # cp opb_prr_0_lin_partial.bit /dev/icap > [ 66.566107] icap icap.0: Failed to open file# > # cp opb_prr_0_lin_partial.bit /dev/icap > # > > I know that this file exists in the current directory, and is a > working partial bitstream. > > Thanks for the help. > Will > > > On Wed, May 14, 2008 at 2:37 PM, Stephen Neuendorffer > <[EMAIL PROTECTED]> wrote: > > > > I bet you're using ARCH ppc... > > > > It looks like in arch/ppc/syslib/virtex_devices.c: > > > > #define XPAR_HWICAP(num) { \ > > .name = "xilinx_icap", \ > > > > Should probably be: > > > > #define XPAR_HWICAP(num) { \ > > .name = "icap", \ > > > > now. > > > > Can you make this change locally and verify that it solves the problem? > > > > Steve > > > >> -----Original Message----- > >> From: [EMAIL PROTECTED] > > [mailto:linuxppc-embedded- > >> [EMAIL PROTECTED] On Behalf Of Will > > Kritikos > >> Sent: Wednesday, May 14, 2008 9:03 AM > >> To: [email protected] > >> Subject: xilinx_hwicap driver problems > >> > >> I am having some trouble using the xilinx_hwicap driver in Linux. > >> I am using version 2.6.24-rc8-xlnx of the Linux kernel from the Xilinx > >> GIT repository. > >> The xilinx_hwicap driver is statically compiled in - not a loadable > > module. > >> I am using the opb_hwicap device on a V4FX60 FPGA, Linux running on > > the PPC405. > >> > >> The driver successfully is initialized on boot - I added a printk to > >> the init function to verify this. However, as far as I can tell, the > >> probe function is never called. There is nothing in dmesg from the > >> icap driver. > >> > >> After boot, the following files exist in /sys > >> > >> /sys/bus/platform/xilinx_icap.0 > >> /sys/bus/platform/drivers/icap/bind > >> /sys/bus/platform/drivers/icap/uevent > >> /sys/bus/platform/drivers/icap/unbind > >> /sys/devices/platform/xilinx_icap.0 > >> > >> I can make a device node /dev/icap, major number 259 minor number 0, > >> and copy partial bitstreams to it, but again nothing happens, and no > >> output in dmesg. > >> > >> Any help is appreciated. I am probably overlooking something simple. > >> > >> Thanks, > >> Will Kritikos > >> _______________________________________________ > >> Linuxppc-embedded mailing list > >> [email protected] > >> https://ozlabs.org/mailman/listinfo/linuxppc-embedded > > > > > > This email and any attachments are intended for the sole use of the named recipient(s) and > contain(s) confidential information that may be proprietary, privileged or copyrighted under > applicable law. If you are not the intended recipient, do not read, copy, or forward this email > message or any attachments. Delete this email message and any attachments immediately. > > > > > _______________________________________________ > Linuxppc-embedded mailing list > [email protected] > https://ozlabs.org/mailman/listinfo/linuxppc-embedded This email and any attachments are intended for the sole use of the named recipient(s) and contain(s) confidential information that may be proprietary, privileged or copyrighted under applicable law. If you are not the intended recipient, do not read, copy, or forward this email message or any attachments. Delete this email message and any attachments immediately. _______________________________________________ Linuxppc-embedded mailing list [email protected] https://ozlabs.org/mailman/listinfo/linuxppc-embedded
